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+/*
+ * Vencord, a modification for Discord's desktop app
+ * Copyright (c) 2023 Vendicated and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import "./styles.css";
+
+import { definePluginSettings } from "@api/Settings";
+import { classNameFactory } from "@api/Styles";
+import { Switch } from "@components/Switch";
+import { loadRnnoise, RnnoiseWorkletNode } from "@sapphi-red/web-noise-suppressor";
+import { Devs } from "@utils/constants";
+import { rnnoiseWasmSrc, rnnoiseWorkletSrc } from "@utils/dependencies";
+import { makeLazy } from "@utils/lazy";
+import { Logger } from "@utils/Logger";
+import { LazyComponent } from "@utils/react";
+import definePlugin from "@utils/types";
+import { findByCode } from "@webpack";
+import { FluxDispatcher, Popout, React } from "@webpack/common";
+import { MouseEvent, ReactNode } from "react";
+
+import { SupressionIcon } from "./icons";
+
+const RNNOISE_OPTION = "RNNOISE";
+
+interface PanelButtonProps {
+ tooltipText: string;
+ icon: () => ReactNode;
+ onClick: (event: MouseEvent<HTMLElement>) => void;
+ tooltipClassName?: string;
+ disabled?: boolean;
+ shouldShow?: boolean;
+}
+const PanelButton = LazyComponent<PanelButtonProps>(() => findByCode("Masks.PANEL_BUTTON"));
+const enum SpinnerType {
+ SpinningCircle = "spinningCircle",
+ ChasingDots = "chasingDots",
+ LowMotion = "lowMotion",
+ PulsingEllipsis = "pulsingEllipsis",
+ WanderingCubes = "wanderingCubes",
+}
+export interface SpinnerProps {
+ type: SpinnerType;
+ animated?: boolean;
+ className?: string;
+ itemClassName?: string;
+}
+const Spinner = LazyComponent<SpinnerProps>(() => findByCode(".spinningCircleInner"));
+
+function createExternalStore<S>(init: () => S) {
+ const subscribers = new Set<() => void>();
+ let state = init();
+
+ return {
+ get: () => state,
+ set: (newStateGetter: (oldState: S) => S) => {
+ state = newStateGetter(state);
+ for (const cb of subscribers) cb();
+ },
+ use: () => {
+ return React.useSyncExternalStore<S>(onStoreChange => {
+ subscribers.add(onStoreChange);
+ return () => subscribers.delete(onStoreChange);
+ }, () => state);
+ },
+ } as const;
+}
+
+const cl = classNameFactory("vc-rnnoise-");
+
+const loadedStore = createExternalStore(() => ({
+ isLoaded: false,
+ isLoading: false,
+ isError: false,
+}));
+const getRnnoiseWasm = makeLazy(() => {
+ loadedStore.set(s => ({ ...s, isLoading: true }));
+ return loadRnnoise({
+ url: rnnoiseWasmSrc(),
+ simdUrl: rnnoiseWasmSrc(true),
+ }).then(buffer => {
+ // Check WASM magic number cus fetch doesnt throw on 4XX or 5XX
+ if (new DataView(buffer.slice(0, 4)).getUint32(0) !== 0x0061736D) throw buffer;
+
+ loadedStore.set(s => ({ ...s, isLoaded: true }));
+ return buffer;
+ }).catch(error => {
+ if (error instanceof ArrayBuffer) error = new TextDecoder().decode(error);
+ logger.error("Failed to load RNNoise WASM:", error);
+ loadedStore.set(s => ({ ...s, isError: true }));
+ return null;
+ }).finally(() => {
+ loadedStore.set(s => ({ ...s, isLoading: false }));
+ });
+});
+
+const logger = new Logger("RNNoise");
+const settings = definePluginSettings({}).withPrivateSettings<{ isEnabled: boolean; }>();
+const setEnabled = (enabled: boolean) => {
+ settings.store.isEnabled = enabled;
+ FluxDispatcher.dispatch({ type: "AUDIO_SET_NOISE_SUPPRESSION", enabled });
+};
+
+function NoiseSupressionPopout() {
+ const { isEnabled } = settings.use();
+ const { isLoading, isError } = loadedStore.use();
+ const isWorking = isEnabled && !isError;
+
+ return <div className={cl("popout")}>
+ <div className={cl("popout-heading")}>
+ <span>Noise Supression</span>
+ <div style={{ flex: 1 }} />
+ {isLoading && <Spinner type={SpinnerType.PulsingEllipsis} />}
+ <Switch checked={isWorking} onChange={setEnabled} disabled={isError} />
+ </div>
+ <div className={cl("popout-desc")}>
+ Enable AI noise suppression! Make some noise&mdash;like becoming an air conditioner, or a vending machine fan&mdash;while speaking. Your friends will hear nothing but your beautiful voice ✨
+ </div>
+ </div>;
+}
+
+export default definePlugin({
+ name: "AI Noise Suppression",
+ description: "Uses an open-source AI model (RNNoise) to remove background noise from your microphone",
+ authors: [Devs.Vap],
+ settings,
+ enabledByDefault: true,
+
+ patches: [
+ {
+ // Pass microphone stream to RNNoise
+ find: "window.webkitAudioContext",
+ replacement: {
+ match: /(?<=\i\.acquire=function\((\i)\)\{return )navigator\.mediaDevices\.getUserMedia\(\1\)(?=\})/,
+ replace: m => `${m}.then(stream => $self.connectRnnoise(stream))`
+ },
+ },
+ {
+ // Noise suppression button in call modal
+ find: "renderNoiseCancellation()",
+ replacement: {
+ match: /(?<=(\i)\.jsxs?.{0,70}children:\[)(?=\i\?\i\.renderNoiseCancellation\(\))/,
+ replace: (_, react) => `${react}.jsx($self.NoiseSupressionButton, {}),`
+ },
+ },
+ {
+ // Give noise suppression component a "shouldShow" prop
+ find: "Masks.PANEL_BUTTON",
+ replacement: {
+ match: /(?<==(\i)\.tooltipForceOpen.{0,100})(?=tooltipClassName:)/,
+ replace: (_, props) => `shouldShow: ${props}.shouldShow,`
+ }
+ },
+ {
+ // Noise suppression option in voice settings
+ find: "Messages.USER_SETTINGS_NOISE_CANCELLATION_KRISP",
+ replacement: [{
+ match: /(?<=(\i)=\i\?\i\.KRISP:\i.{1,20}?;)/,
+ replace: (_, option) => `if ($self.isEnabled()) ${option} = ${JSON.stringify(RNNOISE_OPTION)};`,
+ }, {
+ match: /(?=\i&&(\i)\.push\(\{name:(?:\i\.){1,2}Messages.USER_SETTINGS_NOISE_CANCELLATION_KRISP)/,
+ replace: (_, options) => `${options}.push({ name: "AI (RNNoise)", value: "${RNNOISE_OPTION}" });`,
+ }, {
+ match: /(?<=onChange:function\((\i)\)\{)(?=(?:\i\.){1,2}setNoiseCancellation)/,
+ replace: (_, option) => `$self.setEnabled(${option}.value === ${JSON.stringify(RNNOISE_OPTION)});`,
+ }],
+ },
+ ],
+
+ setEnabled,
+ isEnabled: () => settings.store.isEnabled,
+ async connectRnnoise(stream: MediaStream): Promise<MediaStream> {
+ if (!settings.store.isEnabled) return stream;
+
+ const audioCtx = new AudioContext();
+ await audioCtx.audioWorklet.addModule(rnnoiseWorkletSrc);
+
+ const rnnoiseWasm = await getRnnoiseWasm();
+ if (!rnnoiseWasm) {
+ logger.warn("Failed to load RNNoise, noise suppression won't work");
+ return stream;
+ }
+
+ const rnnoise = new RnnoiseWorkletNode(audioCtx, {
+ wasmBinary: rnnoiseWasm,
+ maxChannels: 1,
+ });
+
+ const source = audioCtx.createMediaStreamSource(stream);
+ source.connect(rnnoise);
+
+ const dest = audioCtx.createMediaStreamDestination();
+ rnnoise.connect(dest);
+
+ // Cleanup
+ const onEnded = () => {
+ rnnoise.disconnect();
+ source.disconnect();
+ audioCtx.close();
+ rnnoise.destroy();
+ };
+ stream.addEventListener("inactive", onEnded, { once: true });
+
+ return dest.stream;
+ },
+ NoiseSupressionButton(): ReactNode {
+ const { isEnabled } = settings.use();
+ const { isLoading, isError } = loadedStore.use();
+
+ return <Popout
+ key="rnnoise-popout"
+ align="center"
+ animation={Popout.Animation.TRANSLATE}
+ autoInvert={true}
+ nudgeAlignIntoViewport={true}
+ position="top"
+ renderPopout={() => <NoiseSupressionPopout />}
+ spacing={8}
+ >
+ {(props, { isShown }) => (
+ <PanelButton
+ {...props}
+ tooltipText="Noise Suppression powered by RNNoise"
+ tooltipClassName={cl("tooltip")}
+ shouldShow={!isShown}
+ icon={() => <div style={{
+ color: isError ? "var(--status-danger)" : "inherit",
+ opacity: isLoading ? 0.5 : 1,
+ }}>
+ <SupressionIcon enabled={isEnabled} />
+ </div>}
+ />
+ )}
+ </Popout>;
+ },
+});